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Linq to EntityFramework DateTime
...ntity Framework, your predicates inside the Where clause get translated to SQL. You're getting that error because there is no translation to SQL for DateTime.Add() which makes sense.
A quick work-around would be to read the results of the first Where statement into memory and then use LINQ to Objec...
Why does Oracle 9i treat an empty string as NULL?
...at doesn't do much to tell me why this is the case. As I understand the SQL specifications, ' ' is not the same as NULL -- one is a valid datum, and the other is indicating the absence of that same information.
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How to get last inserted id?
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For SQL Server 2005+, if there is no insert trigger, then change the insert statement (all one line, split for clarity here) to this
INSERT INTO aspnet_GameProfiles(UserId,GameId)
OUTPUT INSERTED.ID
VALUES(@UserId, @GameId)
F...
Create a nonclustered non-unique index within the CREATE TABLE statement with SQL Server
It is possible to create a primary key or unique index within a SQL Server CREATE TABLE statement. Is it possible to create a non-unique index within a CREATE TABLE statement?
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ERROR: Error 1005: Can't create table (errno: 121)
I have troubles with forward engineering my MySQL database into WAMP server..
I was going to post an image of the schema but as this is my first post I can't.
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How to convert java.sql.timestamp to LocalDate (java8) java.time?
In Java 8, how can I convert a Timestamp (in java.sql ) to a LocalDate (in java.time )?
3 Answers
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String concatenation in MySQL
I am using MySQL and MySQL Workbench 5.2 CE. When I try to concatenate 2 columns, last_name and first_name , it doesn't work :
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Fastest Way to Find Distance Between Two Lat/Long Points
I currently have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers...
How do I alter the position of a column in a PostgreSQL database table?
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"Alter column position" in the PostgreSQL Wiki says:
PostgreSQL currently defines column
order based on the attnum column of
the pg_attribute table. The only way
to change column order is either by
recreating the table, or by adding
columns and rota...
How to get a date in YYYY-MM-DD format from a TSQL datetime field?
How do I retrieve a date from SQL Server in YYYY-MM-DD format? I need this to work with SQL Server 2000 and up. Is there a simple way to perform this in SQL Server or would it be easier to convert it programmatically after I retrieve the result set?
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